James Gunn will write and direct the sequel in much the same manner as Joss Whedon has taken the writer/director reins on Avengers, and he’s got ideas:

I have a lot of ideas for stories and characters that are going to appear, and there are documents written up, that some people have, about Peter Quill’s father and his relationship, a lot of stuff about Yondu and a lot of stuff about Drax that nobody knows.

There are a lot of things that are part of the overall schematic that already exist, not to mention a lot of stuff about all of the cultures. There’s a lot of stuff about Xandarian and Kree culture that I’ve written down or I have in my head, as well as Krylorians and Ravagers.

Drax has an extensive history that I’ve chronicled on this site before, as do the Xandarians. Kree culture, depending on its form in the Marvel Cinematic Universe could be greatly expanded upon as well. Might we see Mar-Vell or the Supreme Intelligence in a Guardians of the Galaxy sequel? (Or the first movie? Hell, I haven’t seen it yet.) In the absence of a Thanos, either character could represent quite a bit of a threat to the Guardians.

Krylorians are a very obscure race from Marvel Comics and are complacent aesthetics who could definitely an extra streak of weird to the cosmic surroundings. The Ravagers that Gunn mentions are Yondu’s group of smugglers.

I’d still love to see them interpret Adam Warlock and the High Evolutionary. Those dudes are weird.